11221300091 has 4 divisors (see below), whose sum is σ = 11256698832. Its totient is φ = 11185901352.

The previous prime is 11221299997. The next prime is 11221300159. The reversal of 11221300091 is 19000312211.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 19000312211 = 1543 ⋅12313877.

It is a cyclic number.

It is not a de Polignac number, because 11221300091 - 2²⁶ = 11154191227 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11221300591) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17698895 + ... + 17699528.

It is an arithmetic number, because the mean of its divisors is an integer number (2814174708).

Almost surely, 2^11221300091 is an apocalyptic number.

11221300091 is a deficient number, since it is larger than the sum of its proper divisors (35398741).

11221300091 is an equidigital number, since it uses as much as digits as its factorization.

11221300091 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35398740.

The product of its (nonzero) digits is 108, while the sum is 20.

The spelling of 11221300091 in words is "eleven billion, two hundred twenty-one million, three hundred thousand, ninety-one".